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[tex]9(x + 1) = 27[/tex]
Divide sides by 9
[tex] \frac{9(x + 1)}{9} = \frac{27}{9} \\ [/tex]
[tex]x + 1 = 3[/tex]
Subtract sides 1
[tex]x + 1 - 1 = 3 - 1[/tex]
[tex]x = 2[/tex]
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Please help I’m terrible at math
Question 13
1 pts
Suppose that the water level of a river is 33 feet and that it is receding at a rate
of 0.5 feet per day. What would the water level be after 15 days? Round your
answer to the nearest tenth.
Answer:
25 1/2 feet
Step-by-step explanation:
Answer:
25.5 ft
Step-by-step explanation:
Starting level: 33 ft
Each day the water recedes 0.5 ft.
Now we calculate the number of ft the water recedes in 15 days.
15 days * 0.5 ft/day = 7.5 ft
In 15 days, the water recedes 7.5 ft.
Level of water after 15 days:
33 ft - 7.5 ft = 25.5 ft
Answer: 25.5 ft
What measure should be used to find out how much water is needed to fill a large swimming pool that is 8 feet by 12
feet by 6 feet?
O area
O lateral area
O surface area
O volume
Answer: D volume
Step-by-step explanation:
Explain why every year must contain at least one Friday the 13th.
Step-by-step explanation:
God said "let there be light" The people who made the calendar said "Let there be Friday 13th.
There are 11 bananas and 8 peaches in a fruit basket. Write the
ratio of peaches to bananas.
Answer: 8:11
Step-by-step explanation:
The amount of seed in a bird feeder decreases 10.8 ounces in 5 days. The amount of seed decreases the same amount each day. What is the change in the amount of seed in the feeder in 7 days?
Unit rate is the quantity of an amount of something at a rate of one of another quantity.
If the amount of seed in a bird feeder decreases by 10.8 ounces in 5 days.
The change in the amount of seed in the feeder in 7 days is 15.12 ounces.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
Example:
A man can run 3 miles in 60 minutes.
The time to run 1 mile is 20 minutes.
We have,
The rate at which the amount of seed decreases.
10.8 ounces = 5 days
Divide both sides by 5.
10.8/5 ounces = 1 day
Multiply 7 on both sides.
7 x 2.16 ounces = 7 days
15.12 ounces = 7 days
This means that in 7 days, the amount of seed decreases by 15.12 ounces.
Thus,
If the amount of seed in a bird feeder decreases by 10.8 ounces in 5 days.
The change in the amount of seed in the feeder in 7 days is 15.12 ounces.
Learn more about unit rates here:
https://brainly.com/question/11258929
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HELPP!! this is due today and i’m super dumb all help is appreciated
Answer:
Step-by-step explanation:
all the sides are different than the other on the bottom of the shape the sizes have longer sides and one short at the bottom.
Which of the following is a root of the polynomial shown below?
f(x) = x2 + 2x2 - x-2
O A. 1
OB. 3
O c. O
O D. 2
Answer:
We conclude that option A is true as x = 1 is the root of the polynomial.
Step-by-step explanation:
Given the polynomial
[tex]f\left(x\right)\:=\:x^2\:+\:2x^2\:-\:x-2[/tex]
Let us determine the root of the polynomial shown below.
[tex]\:0=\:x^2\:+\:2x^2\:-\:x-2[/tex]
[tex]0=3x^2-x-2[/tex]
switch sides
[tex]3x^2-x-2=0[/tex]
as
[tex]3x^2-x-2=\left(3x+2\right)\left(x-1\right)[/tex]
so the equation becomes
[tex]\left(3x+2\right)\left(x-1\right)=0[/tex]
Using the zero factor principle
[tex]3x+2=0\quad \mathrm{or}\quad \:x-1=0[/tex]
solving
[tex]3x+2=0[/tex]
[tex]3x=-2[/tex]
[tex]\frac{3x}{3}=\frac{-2}{3}[/tex]
[tex]x=-\frac{2}{3}[/tex]
and
[tex]x-1=0[/tex]
[tex]x=1[/tex]
The possible roots of the polynomial will be:
[tex]x=-\frac{2}{3},\:x=1[/tex]
Therefore, from the mentioned options, we conclude that option A is true as x = 1 is the root of the polynomial.
6
1
1 point
If f(x) = 4x – 11, what is the value of f(5)?
O 20. – 55
0 4
O 9
O 34
2
3
Answer:
9
Step-by-step explanation:
f(x) = 4x- 11
f(5) = 4(5) - 11
f(5) = 20- 11
f(5) = 9
X + y + z = 1
2x + 4y + z = 2
- X + 3y
=11
Answer:
x=-5
y=2
z=-4
Step-by-step explanation:
we can solve this by elimination and substitution method.
Which of the following is not a true bi-conditional statement?
A.) It is noon if only if it is 12:00 PM
B.) An angle is right if and only if it’s measure is 90°.
C.) I am a violinist if and only if I am a musician.
D.) Two segments are congruent if and only if they have the same length.
well a bi conditional statement is a statement that joins P and Q together with ths use of if and only if eg P if and only if Q.
I think the answer is (A) because 12:00pm is not the only noon time. 1pm is also noon so yeah that's why I think its A
What Student starts Farther away
hi, can someone pls double-check my answers and let me know if I got any wrong?? :)
1. the sum of 6 and t = 6 + t
2. the product of y and 11
3. the difference of 4 from 12
4. the quotient of 6 divided by t
5. 19 less than 25
6. increase s by 2s
7. decrease 11 by r
8. add 6 times x and 2 times s
9. the quotient of 17 minus 12 and 2
10. the product of 3 and x less 10
11. the product of 7 and 2 divided by 2
Answers: 1. 6 + t
2. 11y
3. 4 - 12
4. 6 / t
5. 25 - 19
6. s + 2s
7. 11 - r
8. 6x + 2s
9. (17 - 12) - 2
10. 3x - 10
11. (7 x 2) / 2
Answer:
They are all right
Step-by-step explanation:
helppppppppp please and thank you in advance
Answer:
\the second and third one
While Justin is in training, he is to drink 500 milliliters of water 4 times per day. How many liters of water will that be for one week?
Answer:
14
Step-by-step explanation:
Nemos aquarium is filled with 2400 cm³ of water the base of the aquarium is 20 cm long and 12 cm wide what is the height of the water in Nemo’s aquarium
U is a midsegment of AFGH. 1) = 7, FH = 9, and GH= 12. Find the perimeter of AIJH. F
Answer:
perimeter of triangle IJH= 17.5
Step-by-step explanation:
line IJ is a midsegment, so you can divide the segments FH and GH by 2.
that means segment IH= 4.5 and segment GH=6. segment IJ is given as 7.
add 4.5 + 6 + 7, which equals 17.5
factor the following quadratic expression:
6x^2 + 17x - 14
Answer:
(2x+7)(3x-2)
Step-by-step explanation:
Answer:
(3x-2) (2x+7)
Step-by-step explanation:
Break the expressions into two groups
(6x^2-4x)+(21+14)
What do you understand by British system of measurement of angle?
Answer:
well, each right angle is divided into 90 equal parts where each part & it's called degrees
each degree is then divided into 60 equal parts where each part is called a minute
each minute is divided again into 60 equal parts where each part is called a second.
Step-by-step explanation:
Suzanne needs material for her school project. She buys 5.50 yards of material at $3.87 a yard. What is the total cost of the material? Round to the nearest cent.
*please show your work*
Answer:
i believe it is 21.285 or 21.29 since yo multiply 5.50 times 3.87 to get 21.285
Step-by-step explanation:
help find missing length will give brainliest!!
Answer:
90
Step-by-step explanation:
Matthew’s bed takes up 1/3 of the width of his bedroom and 3/5 of the length. What fraction of the area of the floor does Matthew’s bed take up?
I believe the answer is 1/5 sorry if this is wrong!
Help me with these four questions and thanks
Answer:
3. 3g/mL
4. 11 g/mL
5. 5mL
6. 500g
Step-by-step explanation:
The graph below plots a function f(x):
If x represents time, the average rate of change of the function f(x) in the first three
seconds is....
Answer:
-50
Step-by-step explanation:
The average rate of change is synonymous with the slope. Therefore, we will find the slope of the function from x=0 to x=3.
So, we will use the endpoints of the function.
At x=0, f(x)=150. Thus, we have the point (0, 150).
At x=3, f(x)=0. Thus, we have the point (3, 0).
Now, we can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let (0, 150) be (x₁, y₁) and let (3, 0) be (x₂, y₂). Substitute:
[tex]m=\frac{0-150}{3-0}=-150/3=-50[/tex]
Therefore, the average rate of change for the first three seconds is -50.
NEED HELP! with these 2?
Step-by-step explanation:
answer,
first one is -5 and the second is 5
hope it helps
Answer: first one is -5
Second one is 5
Step-by-step explanation:
please help will give brainliest
Find the unknown angle in each case.
2 t-shirts and 3 hats costs £12.
5 t-shirts and 4 hats costs £23.
Find the cost of a t-shirt.
Find the cost of a hat
Answer:
Cost of tshirt = £7.29
Cost of what = £0.86
Step-by-step explanation:
2t +3h = 12; 10t + 15h = 60
5t + 4h =33; 10t + 8h = 66
15h -8h = -6
7h = -6; h = -6/7; h = 0.86
2t +3(-6/7) =12
14t -18 = 84
14t = 102; t = 102/ 14; t=7.29
Which line best fits the data?
A. Line B
B. Line C
C. Line A
D. None of the lines fit the data well
Answer:
Line B
Step-by-step explanation:
Line is between a lot of the dots. Even though it's not directly on any of them, it still is around the them
An Olympic runner completes the 200-meter sprint in 23 seconds. What is the runner’s average speed? (Round your answer to the nearest tenth of a meter per second.)
0.9 m/s
1.2 m/s
8.7 m/s
10.1 m/s
Answer:
C. 8.7 m/s
Step-by-step explanation:
Answer:
8.7 m/s
Step-by-step explanation:
correct on edge 2021
PLEASE PLS ANSWER ASAP
Answer:
[tex] - 29[/tex]
Step-by-step explanation:
[tex] - 29 {m}^{2} \\ - 29( - 1 {)}^{2} \\ - 29(1) \\ - 29[/tex]